Adrian Prantl 02474a32eb Move the complex address expression out of DIVariable and into an extra ... argument of the llvm.dbg.declare/llvm.dbg.value intrinsics. Previously, DIVariable was a variable-length field that has an optional reference to a Metadata array consisting of a variable number of complex address expressions. In the case of OpPiece expressions this is wasting a lot of storage in IR, because when an aggregate type is, e.g., SROA'd into all of its n individual members, the IR will contain n copies of the DIVariable, all alike, only differing in the complex address reference at the end. By making the complex address into an extra argument of the dbg.value/dbg.declare intrinsics, all of the pieces can reference the same variable and the complex address expressions can be uniqued across the CU, too. Down the road, this will allow us to move other flags, such as "indirection" out of the DIVariable, too. The new intrinsics look like this: declare void @llvm.dbg.declare(metadata %storage, metadata %var, metadata %expr) declare void @llvm.dbg.value(metadata %storage, i64 %offset, metadata %var, metadata %expr) This patch adds a new LLVM-local tag to DIExpressions, so we can detect and pretty-print DIExpression metadata nodes. What this patch doesn't do: This patch does not touch the "Indirect" field in DIVariable; but moving that into the expression would be a natural next step. http://reviews.llvm.org/D4919 rdar://problem/17994491 Thanks to dblaikie and dexonsmith for reviewing this patch! Note: I accidentally committed a bogus older version of this patch previously. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218787 91177308-0d34-0410-b5e6-96231b3b80d8		2014-10-01 18:55:02 +00:00
..
AArch64	Move the complex address expression out of DIVariable and into an extra	2014-10-01 18:55:02 +00:00
ARM	Move the complex address expression out of DIVariable and into an extra	2014-10-01 18:55:02 +00:00
COFF	Fix a small typo in the test comment	2014-09-23 14:07:12 +00:00
Inputs	Omit DW_AT_inline under -gmlt to save a little more space.	2014-09-30 23:29:16 +00:00
Mips	Move the complex address expression out of DIVariable and into an extra	2014-10-01 18:55:02 +00:00
PowerPC	Reduce verbiage of lit.local.cfg files	2014-06-09 22:42:55 +00:00
Sparc	Reduce verbiage of lit.local.cfg files	2014-06-09 22:42:55 +00:00
SystemZ	Move the complex address expression out of DIVariable and into an extra	2014-10-01 18:55:02 +00:00
X86	Move the complex address expression out of DIVariable and into an extra	2014-10-01 18:55:02 +00:00
2009-10-16-Phi.ll
2009-11-03-InsertExtractValue.ll	Debug Info: update testing cases to specify the debug info version number.	2013-11-22 21:49:45 +00:00
2009-11-05-DeadGlobalVariable.ll	Fix typos	2014-06-19 19:41:26 +00:00
2009-11-06-NamelessGlobalVariable.ll	DebugInfo: Assert that a CU's subprogram list contains only subprograms.	2014-05-14 21:52:37 +00:00
2009-11-10-CurrentFn.ll	Move the complex address expression out of DIVariable and into an extra	2014-10-01 18:55:02 +00:00
2010-01-05-DbgScope.ll	Debug Info: update testing cases to specify the debug info version number.	2013-11-22 21:49:45 +00:00
2010-03-12-llc-crash.ll	Move the complex address expression out of DIVariable and into an extra	2014-10-01 18:55:02 +00:00
2010-03-19-DbgDeclare.ll	Move the complex address expression out of DIVariable and into an extra	2014-10-01 18:55:02 +00:00
2010-03-24-MemberFn.ll	Move the complex address expression out of DIVariable and into an extra	2014-10-01 18:55:02 +00:00
2010-03-30-InvalidDbgInfoCrash.ll	Move the complex address expression out of DIVariable and into an extra	2014-10-01 18:55:02 +00:00
2010-04-06-NestedFnDbgInfo.ll	Move the complex address expression out of DIVariable and into an extra	2014-10-01 18:55:02 +00:00
2010-04-19-FramePtr.ll	Reland r200340 - 'Add line table debug info to COFF files when using a win32 triple'	2014-01-30 01:39:17 +00:00
2010-05-03-DisableFramePtr.ll	Move the complex address expression out of DIVariable and into an extra	2014-10-01 18:55:02 +00:00
2010-05-03-OriginDIE.ll	Move the complex address expression out of DIVariable and into an extra	2014-10-01 18:55:02 +00:00
2010-05-10-MultipleCU.ll	Reland r200340 - 'Add line table debug info to COFF files when using a win32 triple'	2014-01-30 01:39:17 +00:00
2010-06-29-InlinedFnLocalVar.ll	Move the complex address expression out of DIVariable and into an extra	2014-10-01 18:55:02 +00:00
2010-07-19-Crash.ll	DebugInfo: Assume the CU's Subprogram list only contains definitions.	2014-05-16 18:26:53 +00:00
2010-10-01-crash.ll	Move the complex address expression out of DIVariable and into an extra	2014-10-01 18:55:02 +00:00
arm-relocs.test	Add support for the R_ARM_ABS32 relocation.	2014-04-03 02:27:00 +00:00
array.ll	Move the complex address expression out of DIVariable and into an extra	2014-10-01 18:55:02 +00:00
bug_null_debuginfo.ll	Debug Info: update testing cases to specify the debug info version number.	2013-11-22 21:49:45 +00:00
constant-pointers.ll	PR19767: DebugInfo emission of pointer constants.	2014-05-20 18:21:51 +00:00
cross-cu-inlining.ll	Move the complex address expression out of DIVariable and into an extra	2014-10-01 18:55:02 +00:00
cross-cu-linkonce-distinct.ll	Move the complex address expression out of DIVariable and into an extra	2014-10-01 18:55:02 +00:00
cross-cu-linkonce.ll	Move the complex address expression out of DIVariable and into an extra	2014-10-01 18:55:02 +00:00
cu-range-hole.ll	Move the complex address expression out of DIVariable and into an extra	2014-10-01 18:55:02 +00:00
cu-ranges.ll	Move the complex address expression out of DIVariable and into an extra	2014-10-01 18:55:02 +00:00
dead-argument-order.ll	Move the complex address expression out of DIVariable and into an extra	2014-10-01 18:55:02 +00:00
debug-info-qualifiers.ll	Move the complex address expression out of DIVariable and into an extra	2014-10-01 18:55:02 +00:00
debuginfofinder-multiple-cu.ll	Debug Info: update testing cases to specify the debug info version number.	2013-11-22 21:49:45 +00:00
debuglineinfo.test	Add DIContext::getLineInfoForAddressRange() function and test. This function allows a caller to obtain a table of line information for a function using the function's address and size.	2013-01-26 00:28:05 +00:00
dwarf-public-names.ll	Move the complex address expression out of DIVariable and into an extra	2014-10-01 18:55:02 +00:00
dwarfdump-debug-frame-simple.test	Previously, parsing capability of the .debug_frame section was added	2013-02-21 22:53:19 +00:00
dwarfdump-debug-loc-simple.test	Spell correct (s/begining/beginning/)	2013-06-19 21:42:05 +00:00
dwarfdump-dump-flags.test	Add command-line flags for DWARF dumping.	2013-01-25 20:26:43 +00:00
dwarfdump-line-dwo.test	llvm-dwarfdump: Support for debug_line.dwo section for file names for type units under fission.	2014-02-24 23:58:54 +00:00
dwarfdump-pubnames.test	DebugInfo: Make pubnames header printing similar to unit header printing	2013-11-01 17:53:30 +00:00
dwarfdump-ranges.test	Kill symbolization functionality in llvm-dwarfdump. We have llvm-symbolizer for that.	2014-05-19 18:45:32 +00:00
dwarfdump-type-units.test	llvm-dwarfdump: support for emitting only the debug_types section using -debug-dump	2013-11-19 00:29:42 +00:00
dwarfdump-zlib.test	Kill symbolization functionality in llvm-dwarfdump. We have llvm-symbolizer for that.	2014-05-19 18:45:32 +00:00
empty.ll	DebugInfo: Add fission-related sections to COFF	2014-03-26 03:05:10 +00:00
enum-types.ll	Move the complex address expression out of DIVariable and into an extra	2014-10-01 18:55:02 +00:00
enum.ll	Move the complex address expression out of DIVariable and into an extra	2014-10-01 18:55:02 +00:00
global.ll	Move test so that it is skipped if the ARM target is not enabled.	2014-06-20 15:30:38 +00:00
gmlt.test	test: XFAIL the non-darwin gmlt test on darwin	2014-10-01 05:45:45 +00:00
incorrect-variable-debugloc.ll	Move the complex address expression out of DIVariable and into an extra	2014-10-01 18:55:02 +00:00
inheritance.ll	Move the complex address expression out of DIVariable and into an extra	2014-10-01 18:55:02 +00:00
inline-debug-info-multiret.ll	Move the complex address expression out of DIVariable and into an extra	2014-10-01 18:55:02 +00:00
inline-debug-info.ll	Move the complex address expression out of DIVariable and into an extra	2014-10-01 18:55:02 +00:00
inline-no-debug-info.ll	Improve the test for inlining of __no_debug__ functions.	2014-06-11 08:46:45 +00:00
inline-scopes.ll	Move the complex address expression out of DIVariable and into an extra	2014-10-01 18:55:02 +00:00
inlined-arguments.ll	Move the complex address expression out of DIVariable and into an extra	2014-10-01 18:55:02 +00:00
inlined-vars.ll	Move the complex address expression out of DIVariable and into an extra	2014-10-01 18:55:02 +00:00
llvm-symbolizer-zlib.test	Kill symbolization functionality in llvm-dwarfdump. We have llvm-symbolizer for that.	2014-05-19 18:45:32 +00:00
llvm-symbolizer.test	Allow DWARFDebugInfoEntryMinimal::getSubroutineName to resolve cross-unit references.	2014-09-22 12:35:53 +00:00
lto-comp-dir.ll	Add comments from Eric's review of r204094.	2014-03-20 17:05:45 +00:00
member-order.ll	Move the complex address expression out of DIVariable and into an extra	2014-10-01 18:55:02 +00:00
member-pointers.ll	DebugInfo: Remove some unneeded conditionals now that DIBuilder no longer emits zero-length arrays as {i32 0}	2014-02-04 01:23:52 +00:00
missing-abstract-variable.ll	Move the complex address expression out of DIVariable and into an extra	2014-10-01 18:55:02 +00:00
namespace_function_definition.ll	DebugInfo: Lazily attach definition attributes to definitions.	2014-05-27 18:37:43 +00:00
namespace_inline_function_definition.ll	Move the complex address expression out of DIVariable and into an extra	2014-10-01 18:55:02 +00:00
namespace.ll	Move the complex address expression out of DIVariable and into an extra	2014-10-01 18:55:02 +00:00
nodebug.ll	Recommit r212203: Don't try to construct debug LexicalScopes hierarchy for functions that do not have top level debug information.	2014-07-25 16:10:16 +00:00
PR20038.ll	Move the complex address expression out of DIVariable and into an extra	2014-10-01 18:55:02 +00:00
restrict.ll	Move the complex address expression out of DIVariable and into an extra	2014-10-01 18:55:02 +00:00
sugared-constants.ll	Move the complex address expression out of DIVariable and into an extra	2014-10-01 18:55:02 +00:00
template-recursive-void.ll	DebugInfo: Remove some unneeded conditionals now that DIBuilder no longer emits zero-length arrays as {i32 0}	2014-02-04 01:23:52 +00:00
tu-composite.ll	Move the complex address expression out of DIVariable and into an extra	2014-10-01 18:55:02 +00:00
tu-member-pointer.ll	DebugInfo: Remove some unneeded conditionals now that DIBuilder no longer emits zero-length arrays as {i32 0}	2014-02-04 01:23:52 +00:00
two-cus-from-same-file.ll	Move the complex address expression out of DIVariable and into an extra	2014-10-01 18:55:02 +00:00
typedef.ll	DebugInfo: Correct the attribute type kind.	2014-05-01 18:31:21 +00:00
unconditional-branch.ll	Move the complex address expression out of DIVariable and into an extra	2014-10-01 18:55:02 +00:00
varargs.ll	Move the complex address expression out of DIVariable and into an extra	2014-10-01 18:55:02 +00:00
version.ll	DebugInfo: Remove some unneeded conditionals now that DIBuilder no longer emits zero-length arrays as {i32 0}	2014-02-04 01:23:52 +00:00